Do you know the scale does harm to the heating 1t boiler brand industrial ukraine?After a long period of operation, scale and corrosion will inevitably occur in heating boilers, which is one of the main causes of boiler accidents. My company as a professional boiler manufacturers, in order to arouse the attention of the vast number of users to boiler scale, The following professional staff of the boiler manufacturers introduce to you the harmfulness of boiler scale and waste a large amount of fuel because the thermal conductivity of the scale is only a fraction of that of steel, so the heat transfer will be blocked after scaling on the heated surface. In order to maintain a certain output of the boiler, it is necessary to raise the temperature on the side of the fire so as to cause the heat loss caused by outward radiation and exhaust smoke. Due to the different working pressure of the boiler, the scale class The quantity of fuel wasted is different with different thickness and thickness. According to the test and calculation, the loss of fuel increases with the increase of scale thickness. It is easy to make steel plate and pipe burned because of overheating. After boiler scaling, it is necessary to keep certain working pressure and evaporation, so the temperature of fire side can only be raised, but the thicker the scale, the lower the coefficient of thermal conductivity, the higher the temperature of fire side. Generally speaking, the temperature of boiler fire side is about 900 ℃, and the temperature of water side is about 190 ℃. When there is no scale, the temperature of the steel plate is about 230 ℃, and once the scale is about 1mm, the temperature of the steel plate is increased by 140 ℃ compared with that without scaling. Left and right. When the metal reaches a certain temperature, the plasticity index of the metal begins to decrease, and the metal will creep and deform because of the overheating when the temperature is higher. So boiler scaling is easy to burn the metal. The accidents caused by scale in boiler account for about 1/3 of the total boiler accidents due to increasing maintenance costs and decreasing service life. Boiler accidents not only cause damage to equipment but also threaten personal safety.
When atmospheric pressure using the direct pressure hot water 1t boiler brand industrial ukraine heating system and water or closed loop. That is, on the boiler body with the atmosphere of the exhaust pipe as a return pipe use, the boiler water pressure is always in full state. This closed loop harm in two ways: The first is when the water temperature is too high furnace, steam generated can not be excreted, so the pressure will continue to rise, explosions and spills can happen at any time. Second, even if the boiler water temperature is not high, it does not produce a large amount of steam, but the role of a circulation pump, the boiler body is subjected to high pressure hot water circulation. The pressure hot water boiler installed in the basement or on the first floor, the hot water storage tank installed on the roof, this embodiment is similar to the boiler to the atmosphere as exhaust pipe return pipe use. Although the boiler is not subjected to the pump pressure applied to the ring, but at all times are under boiler water holding tank to provide a high static pressure, the higher the floor, the higher the static pressure of the hot water.
surface; lower part is combustion room. This boiler is easy to install on site,
Before coming heating season, Pinggu and Yanqing, Miyun three areas have been completed six large coal-fired 1t boiler brand industrial ukraine clean energy transformation, involving a total of 1660 tons of steam, residential heating area of about 900 square meters, in order to promote the city's urban focus heating basically clean heating to make a strong contribution.
It is reported that, in addition to this rural area south of the coal-fired boiler house for reasons of space, and the remaining five of the original coal-fired boiler room facility will be retained as an emergency backup. Pinggu District-Valley heating plant boiler clean energy transformation project has been debugging equipment, the boiler room of the original four coal-fired boilers, a total of 400 tons of steam, heating an area of about 2.5 million square meters, the new 3 sets of 100 tons of steam gas boiler is equipped with a heat pump.
Also, according to plan, City Management Committee led the development of the annual Yajian coal and clean energy facilities construction program to focus on the northern region, enhance power supply, gas supply capacity, promote Plains natural gas pipeline "town pass" to protect coal demand for clean energy. The basic realization of the city's plains village "No Coal", the phasing out of bulk coal sales within the region transformation of the industry and commerce department for bulk coal sales cancellation of registration in accordance with law, in principle, be issued a new business license. For failure to implement clean heating in winter 2018 and not included in the annual village "coal to clean energy" program, full implementation of quality coal instead.
Reduction of carbon dioxide, sulfur dioxide emissions
Pinggu District Management Committee, according to the person in charge, Riverside, Xia Xing Coal Valley and heating plant is heating an area of 7.416 million square meters, of which the heating plant heating Riverfront area of 4.1 million square meters, the Xingu heating plant heating an area of 2.808 million square meters, summer Coal heating plant heating area 508,000 square meters.
By upgrading "coal to gas", three heating plants meet emission standards Beijing local standard NOx emissions of less than 30 mg / standard cubic meter, while the amount of coal Yajian 160,000 tons per year, greatly reduce emissions of carbon dioxide, sulfur dioxide, nitrogen oxide.
Among them, Xingu heating plant "coal to gas" project officially started on May 16 this year, October 20, Sheung Shui, October 27 with the ignition conditions.
Riverside heating plant "coal to gas" on May 16 this year started, has completed the boiler and associated piping, heat pumps and ancillary equipment installation, ongoing electrical, control system debugging, October 22 has been Sheung Shui, October 29 have ignition conditions.
Summer Coal heating plant "coal gas" this year officially started on August 18, has completed commissioning of boiler facilities and associated piping, heat pumps and ancillary equipment installation, ongoing electrical, control systems, etc., on October 29 water, with firing conditions.